203321102101 has 16 divisors (see below), whose sum is σ = 219875269824. Its totient is φ = 186897936384.

The previous prime is 203321102071. The next prime is 203321102129. The reversal of 203321102101 is 101201123302.

It is a cyclic number.

It is not a de Polignac number, because 203321102101 - 2⁵ = 203321102069 is a prime.

It is a super-2 number, since 2×203321102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203321102191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16655466 + ... + 16667668.

It is an arithmetic number, because the mean of its divisors is an integer number (13742204364).

Almost surely, 2^203321102101 is an apocalyptic number.

It is an amenable number.

203321102101 is a deficient number, since it is larger than the sum of its proper divisors (16554167723).

203321102101 is a wasteful number, since it uses less digits than its factorization.

203321102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17460.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203321102101 its reverse (101201123302), we get a palindrome (304522225403).

The spelling of 203321102101 in words is "two hundred three billion, three hundred twenty-one million, one hundred two thousand, one hundred one".